head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.

Execution · Light / Casual
An emotional traversal story with light puzzles and almost no skill gate.

Variance · Light / Casual
An interactive story that tests emotional choice, not skill.
Sea of Solitude leans Execution (Light / Casual); The Walking Dead leans Variance (Light / Casual).
Sea of Solitude leans a little harder on execution, though the gap is small.
Sea of Solitude
Gentle traversal and swimming with generous margins
The Walking Dead
Quick-time prompts are forgiving and rarely fail the story
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Sea of Solitude
Monsters are story beats, not adversaries
The Walking Dead
No opponent - characters follow the script
The Walking Dead leans a little harder on variance, though the gap is small.
Sea of Solitude
The journey is entirely scripted
The Walking Dead
Branch outcomes are hidden on a first playthrough only
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Sea of Solitude
Light environmental puzzles with single solutions
The Walking Dead
Choices barely gate progress; nothing meaningful to solve
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.